LIGHT EMITTING ELEMENT AND DISPLAY DEVICE

Organization Name

SAMSUNG DISPLAY CO., LTD.

Inventor(s)

JIYOUNG Lee of Yongin-si (KR)

TSUYOSHI Naijo of Yongin-si (KR)

YUNJEE Park of Yongin-si (KR)

SUNG-SOO Bae of Yongin-si (KR)

HOJUNG Syn of Yongin-si (KR)

HYOSUP Shin of Yongin-si (KR)

CHANGWOONG Chu of Yongin-si (KR)

LIGHT EMITTING ELEMENT AND DISPLAY DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18436263 titled 'LIGHT EMITTING ELEMENT AND DISPLAY DEVICE

The abstract describes a patent application for a light emitting element with specific components, including a first electrode, a second electrode, and multiple emission layers containing various materials such as a hole transporting host, an electron transporting host, a phosphorescent sensitizer, and a first fluorescent dopant.

The first fluorescent dopant in the light emitting element has a unique pentacyclic fused ring core with specific characteristics, including a boron atom and two heteroatoms as ring-forming atoms, as well as at least one amine substituent that is substituted with at least one pyrenyl group.

The energy levels of the first fluorescent dopant, specifically the triplet state energy level and the singlet state energy level, have a significant difference of at least 0.4 eV.

This innovative design of the light emitting element aims to improve the efficiency and performance of the display device it is incorporated into.

The specific composition and structure of the first fluorescent dopant contribute to the overall functionality and effectiveness of the light emitting element in the display device.

The patent application focuses on the unique features and benefits of the first fluorescent dopant in enhancing the light emission properties of the display device.

Potential Applications: The technology described in the patent application could be applied in various display devices, such as OLED screens, lighting panels, and electronic signage.

Problems Solved: This technology addresses the need for improved light emission efficiency and performance in display devices, enhancing the overall visual quality and user experience.

Benefits: The use of the first fluorescent dopant in the light emitting element can lead to brighter, more vibrant displays with lower power consumption, making it a valuable innovation in the field of display technology.

Commercial Applications: This technology could have significant commercial applications in industries such as consumer electronics, automotive displays, and advertising signage, where high-quality visual displays are essential for attracting and engaging customers.

Questions about the Technology: 1. How does the unique structure of the first fluorescent dopant contribute to the efficiency of the light emitting element? 2. What potential advancements in display technology could be achieved by incorporating this innovative fluorescent dopant?

Original Abstract Submitted

Embodiments provide a light emitting element and a display device including the same. The light emitting element includes a first electrode, a second electrode, and a plurality of emission layers disposed between the first electrode and the second electrode, wherein at least one of the plurality of emission layers include a hole transporting host, an electron transporting host, a phosphorescent sensitizer, and a first fluorescent dopant. The first fluorescent dopant comprises a pentacyclic fused ring core that includes one boron atom and two heteroatoms as ring-forming atoms, and at least one amine substituent of the fused ring core; the at least one amine substituent is substituted with at least one substituted or unsubstituted pyrenyl group; and a difference between a triplet state energy level of the first fluorescent dopant and a singlet state energy level of the first fluorescent dopant is equal to or greater than about 0.4 eV.